Submission

Score: 100

User: karnsinee

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.003 second

Submitted On: 2025-07-11 21:37:42

#include<bits/stdc++.h>
using namespace std;
string a;
int main(){
	int x[26]={0};
	cin>>a;
	for(int i=0;i<26;i++){
		x[a[i]-'A']++;
	}
	
	for(int i=0;i<26;i++)
	if(x[i]==1){
		cout<<char(i+'A');
		return 0;
	}
	
}